fix

app/client_bot/routers/content.py

@@ -63,7 +63,7 @@ async def t_callback_purchase_node_content(query: types.CallbackQuery, memory=No
         meta={
             'confirmation_url': wallet_obj_by_name(ton_connection.wallet_key.split('==')[0])['universal_url']
         },
-        created_at=datetime.now()
+        created=datetime.now()
     )
     db_session.add(new_action)
     db_session.commit()

app/core/_blockchain/ton/toncenter.py

@@ -31,7 +31,7 @@ class TonCenter:
                     await asyncio.sleep(0.1)
 
             self.last_used = time.time()
-            response = await client.request(method, f"{self.host_v3 if v3 is True else self.host}{endpoint}", *args, **kwargs)
+            response = await client.request(method, f"{self.v3_host if v3 is True else self.host}{endpoint}", *args, **kwargs)
             try:
                 if response.status_code != 200:
                     raise Exception(f'Error while toncenter request {endpoint}: {response.text}')